|
|
Thread Tools | Display Modes |
#1
|
|||
|
|||
First Light images with Hutech Type 1 Modified EOS 350D
I have lurked here for a while but don't normally post, however there
have been a number of threads about DSLR imaging in recent months so I thought this might be interesting to some people here. I've had the camera for a few days now but the weather was uncooperative (as usual) until the night of February 28th. I hooked up the camera to my FSQ (riding on top of a 12.5" RCOS Ritchey Chretien on an AP1200GTO mount) and took 12 x 5 minute images of the Rosette Nebula and Horsehead/Flame Nebula region; the images were unguided but the mount tracks pretty well and has a corrected PE of around 2 arc-seconds peak to peak so the stars are reasonably shaped. I pre-processed and colour-converted the images in Maxim-DL (with the DSLR extension) then finished off with some non-linear stretching in PhotoShop CS2. There is some structured noise visible in both images which I believe may be reduced by dithering exposures and using a sigma rejection or SD masking combine method - if the weather holds up this weekend I will try some 10 minute sub-exposures guided with my ST-10 camera. The images are nothing special but generally I am pretty pleased with the way they came out and I am encouraged to try more imaging with this camera. Incidentally I bought the camera from SCS Astro and, unlike so often with Astro kit, the price I paid was pretty much identical to what I would have paid if I imported it from the states myself. Comments are welcome Regards Derrick Images can be found at: http://www.lh-dome.demon.co.uk/Latest_Images/EOS_1st_Light.htm Be sure to scroll down the page to view both objects. -- Derrick Farley http://www.lh-dome.demon.co.uk/ |
#2
|
|||
|
|||
First Light images with Hutech Type 1 Modified EOS 350D
Some excellent images Derrick
Many thanks for sharing Darren "Derrick Farley" wrote in message ... I have lurked here for a while but don't normally post, however there have been a number of threads about DSLR imaging in recent months so I thought this might be interesting to some people here. I've had the camera for a few days now but the weather was uncooperative (as usual) until the night of February 28th. I hooked up the camera to my FSQ (riding on top of a 12.5" RCOS Ritchey Chretien on an AP1200GTO mount) and took 12 x 5 minute images of the Rosette Nebula and Horsehead/Flame Nebula region; the images were unguided but the mount tracks pretty well and has a corrected PE of around 2 arc-seconds peak to peak so the stars are reasonably shaped. I pre-processed and colour-converted the images in Maxim-DL (with the DSLR extension) then finished off with some non-linear stretching in PhotoShop CS2. There is some structured noise visible in both images which I believe may be reduced by dithering exposures and using a sigma rejection or SD masking combine method - if the weather holds up this weekend I will try some 10 minute sub-exposures guided with my ST-10 camera. The images are nothing special but generally I am pretty pleased with the way they came out and I am encouraged to try more imaging with this camera. Incidentally I bought the camera from SCS Astro and, unlike so often with Astro kit, the price I paid was pretty much identical to what I would have paid if I imported it from the states myself. Comments are welcome Regards Derrick Images can be found at: http://www.lh-dome.demon.co.uk/Latest_Images/EOS_1st_Light.htm Be sure to scroll down the page to view both objects. -- Derrick Farley http://www.lh-dome.demon.co.uk/ |
Thread Tools | |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
How can Orbital Electron Rotate Permanently without Energy Supply? | newedana | Astronomy Misc | 217 | December 8th 05 06:36 PM |
Dense fogs in Valles Marineris Mars. | Robert Clark | Astronomy Misc | 243 | April 18th 05 07:04 PM |
Can't get out of the universe "My crew will blow it up"!!!!!!!!!!! | zetasum | Policy | 0 | February 4th 05 11:06 PM |
Light pollution. Was: Exterior House Lighting | N9WOS | Amateur Astronomy | 26 | February 10th 04 04:03 AM |